diff --git a/src/main/java/com/ctrip/zeus/auth/impl/IPAuthenticationFilter.java b/src/main/java/com/ctrip/zeus/auth/impl/IPAuthenticationFilter.java
index 57769dd2..ccc721f1 100644
--- a/src/main/java/com/ctrip/zeus/auth/impl/IPAuthenticationFilter.java
+++ b/src/main/java/com/ctrip/zeus/auth/impl/IPAuthenticationFilter.java
@@ -26,6 +26,8 @@ import java.util.Map;
 public class IPAuthenticationFilter implements Filter{
     private static final Logger logger = LoggerFactory.getLogger(IPAuthenticationFilter.class);
     DynamicStringProperty ipUserStr = DynamicPropertyFactory.getInstance().getStringProperty("ip.authentication", "127.0.0.1,172.16.144.61=releaseSys");
+    private static final String SLB_SERVER_USER = "slbServer";
+    public static final String SERVER_TOKEN_HEADER = "SlbServerToken";
 
     private volatile Map<String, String> ipUserMap = new HashMap<>();
 
@@ -52,18 +54,32 @@ public class IPAuthenticationFilter implements Filter{
             return;
         }
 
+        // check whether it is called from other slb servers.
+        String slbServerToken = request.getHeader(SERVER_TOKEN_HEADER);
+        if (slbServerToken != null){
+            if (TokenManager.validateToken(slbServerToken)){
+                setAssertion(request, SLB_SERVER_USER);
+                filterChain.doFilter(request,response);
+                return;
+            }
+        }
+
         // if the request is from in ip white list, then authenticate it using the ip white list.
         String clientIP = getClientIP(request);
         String ipUser = getIpUser(clientIP);
         if (ipUser != null){
             logger.info("Authenticated by IP: " + clientIP + " Assigned userName:" + ipUser);
-            assertion = new AssertionImpl(ipUser);
-            request.setAttribute(AbstractCasFilter.CONST_CAS_ASSERTION, assertion);
-            request.getSession().setAttribute(AbstractCasFilter.CONST_CAS_ASSERTION, assertion);
+            setAssertion(request, ipUser);
         }
         filterChain.doFilter(request,response);
     }
 
+    private void setAssertion(HttpServletRequest request, String userName) {
+        Assertion assertion = new AssertionImpl(userName);
+        request.setAttribute(AbstractCasFilter.CONST_CAS_ASSERTION, assertion);
+        request.getSession().setAttribute(AbstractCasFilter.CONST_CAS_ASSERTION, assertion);
+    }
+
     @Override
     public void destroy() {
         // nothing to do
diff --git a/src/main/java/com/ctrip/zeus/auth/impl/TokenManager.java b/src/main/java/com/ctrip/zeus/auth/impl/TokenManager.java
new file mode 100644
index 00000000..7e1a1fe1
--- /dev/null
+++ b/src/main/java/com/ctrip/zeus/auth/impl/TokenManager.java
@@ -0,0 +1,109 @@
+package com.ctrip.zeus.auth.impl;
+
+import com.ctrip.zeus.dal.core.AuthPrivateKeyDao;
+import com.ctrip.zeus.dal.core.AuthPrivateKeyDo;
+import com.ctrip.zeus.dal.core.AuthPrivateKeyEntity;
+import com.ctrip.zeus.support.DaoFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import sun.misc.BASE64Decoder;
+import sun.misc.BASE64Encoder;
+
+import javax.crypto.Cipher;
+import javax.crypto.SecretKey;
+import javax.crypto.SecretKeyFactory;
+import javax.crypto.spec.DESKeySpec;
+import java.security.Key;
+
+/**
+ * User: mag
+ * Date: 5/14/2015
+ * Time: 5:27 PM
+ */
+public class TokenManager {
+    private static final Logger logger = LoggerFactory.getLogger(TokenManager.class);
+    public static final String ALGORITHM = "DES";
+    private static String privateKey = "slbPrivateKey";
+
+    static {
+        try {
+            AuthPrivateKeyDao dao = new DaoFactory().getDao(AuthPrivateKeyDao.class);
+            AuthPrivateKeyDo privateKeyDo = dao.findFirst(AuthPrivateKeyEntity.READSET_FULL);
+            privateKey = privateKeyDo.getPrivateKey();
+        }catch (Exception e){
+            logger.error("error fetch private key from db.",e);
+        }
+    }
+
+    public static String generateToken() {
+        long currTime = System.currentTimeMillis();
+        byte[] timeBytes = toBytes(currTime);
+        try {
+            Key k = toKey(privateKey.getBytes("UTF-8"));
+            Cipher cipher = Cipher.getInstance(ALGORITHM);
+            cipher.init(Cipher.ENCRYPT_MODE, k);
+            return encryptBASE64(cipher.doFinal(timeBytes));
+        }catch (Exception e){
+            logger.error("error when generate token",e);
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static boolean validateToken(String token) {
+        try {
+            Key key = toKey(privateKey.getBytes("UTF-8"));
+            Cipher cipher = Cipher.getInstance(ALGORITHM);
+            cipher.init(Cipher.DECRYPT_MODE, key);
+            long currTime = System.currentTimeMillis();
+            long decryptedTime = toLong(cipher.doFinal(decryptBASE64(token)));
+            if ((currTime - decryptedTime) < 60000){
+                return true;
+            }
+        } catch (Exception e) {
+            logger.error("validate token fail!",e);
+        }
+        return false;
+    }
+
+    private static byte[] decryptBASE64(String key) throws Exception {
+        return (new BASE64Decoder()).decodeBuffer(key);
+    }
+
+
+    private static String encryptBASE64(byte[] key) throws Exception {
+        return (new BASE64Encoder()).encodeBuffer(key);
+    }
+
+    private static Key toKey(byte[] key) throws Exception {
+        DESKeySpec dks = new DESKeySpec(key);
+        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(ALGORITHM);
+        SecretKey secretKey = keyFactory.generateSecret(dks);
+        return secretKey;
+    }
+
+    private static byte[] toBytes(long value){
+        byte[] result = new byte[8];
+        long tmp = value;
+        for (int i = 7; i >= 0; i--) {
+            result[i] = (byte) (tmp & (0xFFL));
+            tmp = tmp >> 8;
+        }
+        return result;
+    }
+
+    private static long toLong(byte[] value) {
+        long rt = 0;
+        for (int i = 0; i < 8; i++) {
+            int add = value[i] & (0xFF);
+            rt = rt << 8;
+            rt += add;
+        }
+        return rt;
+    }
+
+    public static void main(String[] args) throws Exception{
+        String token = TokenManager.generateToken();
+        System.out.println("token:" + token);
+        System.out.println("validate token:" + TokenManager.validateToken(token));
+    }
+}
diff --git a/src/main/java/com/ctrip/zeus/client/AbstractRestClient.java b/src/main/java/com/ctrip/zeus/client/AbstractRestClient.java
index 601c71de..0672e230 100644
--- a/src/main/java/com/ctrip/zeus/client/AbstractRestClient.java
+++ b/src/main/java/com/ctrip/zeus/client/AbstractRestClient.java
@@ -1,11 +1,16 @@
 package com.ctrip.zeus.client;
 
+import com.ctrip.zeus.auth.impl.IPAuthenticationFilter;
+import com.ctrip.zeus.auth.impl.TokenManager;
 import org.glassfish.jersey.client.ClientConfig;
 import org.glassfish.jersey.uri.UriComponent;
 
 import javax.ws.rs.client.Client;
 import javax.ws.rs.client.ClientBuilder;
+import javax.ws.rs.client.Invocation;
 import javax.ws.rs.client.WebTarget;
+import javax.ws.rs.core.MultivaluedHashMap;
+import javax.ws.rs.core.MultivaluedMap;
 
 /**
  * @author:xingchaowang
@@ -28,4 +33,10 @@ public abstract class AbstractRestClient {
     protected WebTarget getTarget(){
         return webTarget;
     }
+
+    protected MultivaluedMap<String, Object> getDefaultHeaders(){
+        MultivaluedMap<String, Object> map = new MultivaluedHashMap<>();
+        map.putSingle(IPAuthenticationFilter.SERVER_TOKEN_HEADER, TokenManager.generateToken());
+        return map;
+    }
 }
diff --git a/src/main/java/com/ctrip/zeus/client/AppClient.java b/src/main/java/com/ctrip/zeus/client/AppClient.java
index a6cbf0ea..13bca36f 100644
--- a/src/main/java/com/ctrip/zeus/client/AppClient.java
+++ b/src/main/java/com/ctrip/zeus/client/AppClient.java
@@ -20,12 +20,12 @@ public class AppClient extends AbstractRestClient {
     }
 
     public List<App> getAll() {
-        String res = getTarget().path("/api/app").request().get(String.class);
+        String res = getTarget().path("/api/app").request().headers(getDefaultHeaders()).get(String.class);
         return null;
     }
 
     public Response add(App app) {
-        return getTarget().path("/api/app/add").request()
+        return getTarget().path("/api/app/add").request().headers(getDefaultHeaders())
                 .post(Entity.entity(
                         String.format(App.JSON, app),
                         MediaType.APPLICATION_JSON
@@ -34,7 +34,7 @@ public class AppClient extends AbstractRestClient {
     }
 
     public App get(String appName) {
-        String res = getTarget().path("/api/app/get/" + appName).request(MediaType.APPLICATION_JSON).get(String.class);
+        String res = getTarget().path("/api/app/get/" + appName).request(MediaType.APPLICATION_JSON).headers(getDefaultHeaders()).get(String.class);
         try {
             return DefaultJsonParser.parse(App.class, res);
         } catch (IOException e) {
diff --git a/src/main/java/com/ctrip/zeus/client/NginxClient.java b/src/main/java/com/ctrip/zeus/client/NginxClient.java
index 87cde201..5b141e57 100644
--- a/src/main/java/com/ctrip/zeus/client/NginxClient.java
+++ b/src/main/java/com/ctrip/zeus/client/NginxClient.java
@@ -42,24 +42,24 @@ public class NginxClient extends AbstractRestClient {
 
 
     public NginxResponse load() throws IOException{
-        String responseStr = getTarget().path("/api/nginx/load").request().get(String.class);
+        String responseStr = getTarget().path("/api/nginx/load").request().headers(getDefaultHeaders()).get(String.class);
         return DefaultJsonParser.parse(NginxResponse.class, responseStr);
     }
 
     public NginxResponse write()throws IOException{
-        String responseStr = getTarget().path("/api/nginx/write").request().get(String.class);
+        String responseStr = getTarget().path("/api/nginx/write").request().headers(getDefaultHeaders()).get(String.class);
         return DefaultJsonParser.parse(NginxResponse.class, responseStr);
     }
 
     public NginxResponse dyups(String upsName ,String upsCommands)throws IOException{
-        String responseStr = getTarget().path("/api/nginx/dyups/"+upsName).request().post(Entity.entity(upsCommands,
+        String responseStr = getTarget().path("/api/nginx/dyups/" + upsName).request().headers(getDefaultHeaders()).post(Entity.entity(upsCommands,
                 MediaType.APPLICATION_JSON
         ),String.class);
         return DefaultJsonParser.parse(NginxResponse.class,responseStr);
     }
 
     public TrafficStatus getTrafficStatus() throws Exception {
-        Response response = getTarget().path("").path("/api/nginx/trafficStatus").request().get();
+        Response response = getTarget().path("").path("/api/nginx/trafficStatus").request().headers(getDefaultHeaders()).get();
         InputStream is = (InputStream)response.getEntity();
         try {
             return DefaultJsonParser.parse(TrafficStatus.class, IOUtils.inputStreamStringify(is));
diff --git a/src/main/java/com/ctrip/zeus/client/SlbClient.java b/src/main/java/com/ctrip/zeus/client/SlbClient.java
index 0b4c36d1..be0acafe 100644
--- a/src/main/java/com/ctrip/zeus/client/SlbClient.java
+++ b/src/main/java/com/ctrip/zeus/client/SlbClient.java
@@ -20,12 +20,12 @@ public class SlbClient extends AbstractRestClient {
     }
 
     public List<Slb> getAll() {
-        String res = getTarget().path("/api/slb").request().get(String.class);
+        String res = getTarget().path("/api/slb").request().headers(getDefaultHeaders()).get(String.class);
         return null;
     }
 
     public Response add(Slb slb) {
-        return getTarget().path("/api/slb/add").request()
+        return getTarget().path("/api/slb/add").request().headers(getDefaultHeaders())
                 .post(Entity.entity(
                         String.format(Slb.JSON, slb),
                         MediaType.APPLICATION_JSON
@@ -33,7 +33,7 @@ public class SlbClient extends AbstractRestClient {
     }
 
     public Response update(Slb slb) {
-        return getTarget().path("/api/slb/update").request()
+        return getTarget().path("/api/slb/update").request().headers(getDefaultHeaders())
                 .post(Entity.entity(
                         String.format(Slb.JSON, slb),
                         MediaType.APPLICATION_JSON
@@ -41,7 +41,7 @@ public class SlbClient extends AbstractRestClient {
     }
 
     public Slb get(String slbName) {
-        String res = getTarget().path("/api/slb/get/" + slbName).request(MediaType.APPLICATION_JSON).get(String.class);
+        String res = getTarget().path("/api/slb/get/" + slbName).request(MediaType.APPLICATION_JSON).headers(getDefaultHeaders()).get(String.class);
         try {
             return DefaultJsonParser.parse(Slb.class, res);
         } catch (IOException e) {
diff --git a/src/main/resources/META-INF/dal/jdbc/core-auth.xml b/src/main/resources/META-INF/dal/jdbc/core-auth.xml
index 74954513..ae1743dd 100644
--- a/src/main/resources/META-INF/dal/jdbc/core-auth.xml
+++ b/src/main/resources/META-INF/dal/jdbc/core-auth.xml
@@ -177,5 +177,17 @@
             </query>
         </query-defs>
     </entity>
+    <entity name="auth-private-key" table="auth_private_key" alias="apk" do-class="AuthPrivateKeyDo">
+        <query-defs>
+            <query name="find-first" type="SELECT">
+                <statement>
+                    <![CDATA[
+                    SELECT <FIELDS/>
+                    FROM <TABLE/>
+                    ]]>
+                </statement>
+            </query>
+        </query-defs>
+    </entity>
 </entities>
 
diff --git a/src/main/resources/META-INF/dal/jdbc/core-codegen.xml b/src/main/resources/META-INF/dal/jdbc/core-codegen.xml
index b36fae0b..c116135c 100644
--- a/src/main/resources/META-INF/dal/jdbc/core-codegen.xml
+++ b/src/main/resources/META-INF/dal/jdbc/core-codegen.xml
@@ -287,6 +287,42 @@
       </query>
     </query-defs>
   </entity>
+  <entity name="auth-private-key" table="auth_private_key" alias="apk">
+    <member name="private-key" field="private_key" value-type="String" length="50" nullable="false" key="true" />
+    <member name="data-change-last-time" field="DataChange_LastTime" value-type="Date" nullable="false" />
+    <var name="key-private-key" value-type="String" key-member="private-key" />
+    <primary-key name="PRIMARY" members="private_key" />
+    <index name="time idx" members="DataChange_LastTime ASC" />
+    <readsets>
+      <readset name="FULL" all="true" />
+    </readsets>
+    <updatesets>
+      <updateset name="FULL" all="true" />
+    </updatesets>
+    <query-defs>
+      <query name="find-by-PK" type="SELECT">
+        <param name="key-private-key" />
+        <statement><![CDATA[SELECT <FIELDS/>
+        FROM <TABLE/>
+        WHERE <FIELD name='private-key'/> = ${key-private-key}]]></statement>
+      </query>
+      <query name="insert" type="INSERT">
+        <statement><![CDATA[INSERT INTO <TABLE/>(<FIELDS/>)
+        VALUES(<VALUES/>)]]></statement>
+      </query>
+      <query name="update-by-PK" type="UPDATE">
+        <param name="key-private-key" />
+        <statement><![CDATA[UPDATE <TABLE/>
+        SET <FIELDS/>
+        WHERE <FIELD name='private-key'/> = ${key-private-key}]]></statement>
+      </query>
+      <query name="delete-by-PK" type="DELETE">
+        <param name="key-private-key" />
+        <statement><![CDATA[DELETE FROM <TABLE/>
+        WHERE <FIELD name='private-key'/> = ${key-private-key}]]></statement>
+      </query>
+    </query-defs>
+  </entity>
   <entity name="auth-resource" table="auth_resource" alias="ar">
     <member name="id" field="id" value-type="int" length="10" nullable="false" key="true" auto-increment="true" />
     <member name="resource-name" field="resource_name" value-type="String" length="100" nullable="false" />
@@ -296,6 +332,7 @@
     <member name="data-change-last-time" field="DataChange_LastTime" value-type="Date" nullable="false" />
     <var name="key-id" value-type="int" key-member="id" />
     <primary-key name="PRIMARY" members="id" />
+    <index name="time_idx" members="DataChange_LastTime ASC" />
     <readsets>
       <readset name="FULL" all="true" />
     </readsets>
@@ -336,6 +373,7 @@
     <primary-key name="PRIMARY" members="id" />
     <index name="role_idx" members="role_name ASC" />
     <index name="res_idx" members="resource_name ASC" />
+    <index name="time_idx" members="DataChange_LastTime ASC" />
     <readsets>
       <readset name="FULL" all="true" />
     </readsets>
@@ -375,6 +413,7 @@
     <var name="key-id" value-type="int" key-member="id" />
     <primary-key name="PRIMARY" members="id" />
     <index name="role_idx" unique="true" members="role_name ASC" />
+    <index name="time_idx" members="DataChange_LastTime ASC" />
     <readsets>
       <readset name="FULL" all="true" />
     </readsets>
@@ -407,13 +446,14 @@
   </entity>
   <entity name="auth-user" table="auth_user" alias="au">
     <member name="id" field="id" value-type="int" length="10" nullable="false" key="true" auto-increment="true" />
-    <member name="user-name" field="user_name" value-type="String" length="50" nullable="false" />
+    <member name="user-name" field="user_name" value-type="String" length="50" />
     <member name="description" field="description" value-type="String" length="100" />
     <member name="created-time" field="created_time" value-type="Date" />
     <member name="data-change-last-time" field="DataChange_LastTime" value-type="Date" nullable="false" />
     <var name="key-id" value-type="int" key-member="id" />
     <primary-key name="PRIMARY" members="id" />
     <index name="usr_name_idx" unique="true" members="user_name ASC" />
+    <index name="time_idx" members="DataChange_LastTime ASC" />
     <readsets>
       <readset name="FULL" all="true" />
     </readsets>
@@ -446,15 +486,15 @@
   </entity>
   <entity name="auth-user-role" table="auth_user_role" alias="aur">
     <member name="id" field="id" value-type="int" length="10" nullable="false" key="true" auto-increment="true" />
-    <member name="user-name" field="user_name" value-type="String" length="50" nullable="false" />
-    <member name="role-name" field="role_name" value-type="String" length="50" nullable="false" />
-    <member name="group" field="group" value-type="String" length="50" nullable="false" />
+    <member name="user-name" field="user_name" value-type="String" length="50" />
+    <member name="role-name" field="role_name" value-type="String" length="50" />
+    <member name="group" field="group" value-type="String" length="50" />
     <member name="created-time" field="created_time" value-type="Date" />
     <member name="data-change-last-time" field="DataChange_LastTime" value-type="Date" nullable="false" />
     <var name="key-id" value-type="int" key-member="id" />
     <primary-key name="PRIMARY" members="id" />
-    <index name="usr_role_idx" unique="true" members="user_name ASC" />
     <index name="usr_idx" members="user_name ASC" />
+    <index name="time_idx" members="DataChange_LastTime ASC" />
     <readsets>
       <readset name="FULL" all="true" />
     </readsets>
@@ -566,7 +606,7 @@
     </query-defs>
   </entity>
   <entity name="conf-app-slb-active" table="conf_app_slb_active" alias="casa">
-    <member name="id" field="id" value-type="long" length="19" nullable="false" key="true" />
+    <member name="id" field="id" value-type="long" length="19" nullable="false" key="true" auto-increment="true" />
     <member name="app-name" field="app_name" value-type="String" length="200" nullable="false" />
     <member name="slb-name" field="slb_name" value-type="String" length="200" nullable="false" />
     <member name="slb-virtual-server-name" field="slb_virtual_server_name" value-type="String" length="200" nullable="false" />
@@ -646,9 +686,11 @@
   </entity>
   <entity name="dist-lock" table="dist_lock" alias="dl">
     <member name="lock-key" field="lock_key" value-type="String" length="255" nullable="false" key="true" />
-    <member name="created-time" field="created_time" value-type="long" length="19" nullable="false" />
+    <member name="created-time" field="created_time" value-type="long" length="19" />
+    <member name="data-change-last-time" field="DataChange_LastTime" value-type="Date" nullable="false" />
     <var name="key-lock-key" value-type="String" key-member="lock-key" />
     <primary-key name="PRIMARY" members="lock_key" />
+    <index name="dcl_key" members="DataChange_LastTime ASC" />
     <readsets>
       <readset name="FULL" all="true" />
     </readsets>
diff --git a/src/main/resources/META-INF/plexus/components.xml b/src/main/resources/META-INF/plexus/components.xml
index f0ee7ccb..2872cb8f 100644
--- a/src/main/resources/META-INF/plexus/components.xml
+++ b/src/main/resources/META-INF/plexus/components.xml
@@ -71,6 +71,15 @@
 				<data-source-name>zeus</data-source-name>
 			</configuration>
 		</component>
+		<component>
+			<role>org.unidal.dal.jdbc.mapping.TableProvider</role>
+			<role-hint>auth-private-key</role-hint>
+			<implementation>org.unidal.dal.jdbc.mapping.SimpleTableProvider</implementation>
+			<configuration>
+				<physical-table-name>auth_private_key</physical-table-name>
+				<data-source-name>zeus</data-source-name>
+			</configuration>
+		</component>
 		<component>
 			<role>org.unidal.dal.jdbc.mapping.TableProvider</role>
 			<role-hint>auth-resource</role-hint>
@@ -332,6 +341,15 @@
 				</requirement>
 			</requirements>
 		</component>
+		<component>
+			<role>com.ctrip.zeus.dal.core.AuthPrivateKeyDao</role>
+			<implementation>com.ctrip.zeus.dal.core.AuthPrivateKeyDao</implementation>
+			<requirements>
+				<requirement>
+					<role>org.unidal.dal.jdbc.QueryEngine</role>
+				</requirement>
+			</requirements>
+		</component>
 		<component>
 			<role>com.ctrip.zeus.dal.core.AuthResourceDao</role>
 			<implementation>com.ctrip.zeus.dal.core.AuthResourceDao</implementation>
diff --git a/src/main/resources/META-INF/wizard/jdbc/wizard.xml b/src/main/resources/META-INF/wizard/jdbc/wizard.xml
index 5848ae31..01501cdb 100644
--- a/src/main/resources/META-INF/wizard/jdbc/wizard.xml
+++ b/src/main/resources/META-INF/wizard/jdbc/wizard.xml
@@ -38,6 +38,7 @@
          <table name="auth_resource_role"/>
          <table name="auth_user_role"/>
          <table name="auth_user"/>
+         <table name="auth_private_key"/>
       </group>
    </jdbc>
 </wizard>